Table 1. Description of the variables and parameters of the COVID-19 model (1).

Variable	Description
$S(t)$	Number of susceptible individuals
$E(t)$	Number of exposed individuals
$A(t)$	Number of asymptomatic infectious individuals
$I(t)$	Number of symptomatic infectious individuals
$Q(t)$	Number of quarantined individuals
$H(t)$	Number of hospitalized individuals
$R(t)$	Number of removed individuals
Parameter	Description
$\beta$	Infection rate
${\eta }_A$	Infection modification parameter for the asymptomatic infection rate
${\eta }_Q$	Infection modification parameter for the quarantined infection rate
$q$	Proportion of exposed developing asymtomatic infections
$\sigma$	Disease progression rate from the exposed to either asymptomatic or infectious
${\gamma }_I$	Recovery rate of infectious
${\gamma }_A$	Recovery rate of asymptomatic
${\gamma }_Q$	Recovery rate of quarantined
${\gamma }_H$	Recovery rate of those hospitalized
${\omega }_Q$	Quarantine rate
${\omega }_H$	Hospitalization rate
${\nu }_Q$	Quarantine violation rate
${\nu }_H$	Hospital discharge rate
${\delta }_Q$	Death rate of quarantined
${\delta }_H$	Death rate of hospitalized
${\delta }_I$	Death rate of infectious
${\delta }_A$	Death rate of asymptomatic